Subaru Legacy 2002 Service Manual page 2719

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (Diagnostics)
No.
8 CHECK BATTERY SHORT OF HARNESS.
Measure voltage between VDCH/U connector
and chassis ground.
Connector & terminal
(F91) No. 13 (+) — Chassis ground (−):
9 CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between VDCH/U con-
nector and chassis ground.
Connector & terminal
(F91) No. 13 (+) — Chassis ground (−):
10 CHECK INPUT VOLTAGE OF PRESSURE
SENSOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from VDCCM.
3) Remove cover from VDCCM. <Ref. to
VDC-17, REMOVE, VDCCM Connector
Cover.>
4) Connect connector to VDCCM.
5) Connect all connectors.
6) Turn ignition switch to ON.
7) Do not depress brake pedal.
8) Measure voltage between VDCCM connec-
tor terminals.
Connector & terminal
(F87) No. 77 (+) — No. 76 (−):
11 CHECK POOR CONTACT IN CONNEC-
TORS.
12 CHECK VDCCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the diagnostic trouble code.
13 CHECK ANY OTHER DIAGNOSTIC
TROUBLE CODES APPEARANCE.
Step
Is the voltage less than 0.5
V?
Is the voltage less than 0.5
V?
Is the voltage between 0.48
and 0.72 V?
Is there poor contact in
connector between
VDCCM and pressure sen-
sor?
Is the same diagnostic
trouble code as in the cur-
rent diagnosis still being
output?
Are other diagnostic trouble
codes being output?
VDC-260
Check Yes
Go to step 9.
Go to step 10.
Go to step 11.
Repair connector.
Replace VDCCM.
<Ref. to VDC-9,
VDC Control Mod-
ule (VDCCM).>
Proceed with the
diagnosis corre-
sponding to the
diagnostic trouble
code.
No
Repair harness
between VDCH/U
and VDCCM.
Repair harness
between VDCH/U
and VDCCM.
Replace VDCH/U.
<Ref. to VDC-11,
Hydraulic Control
Unit (H/U).>
Go to step 12.
Go to step 13.
A temporary poor
contact.